Primary Rate Interface equipment: overview
Page 23 of 188
ISDN PRI Installation
DTI to PRI conversion
The QPC720 PRI circuit card can be used in Digital Trunk Interface (DTI)
mode. If the circuit card is switched from DTI mode to PRI mode, use
Procedure 1
DTI to PRI conversion
1
Disable the QPC720 PRI using LD 60, prompt DISL x.
2
Change option switch settings on the PRI circuit card as required.
Refer to
3
If the PRI links the D-channel, connect J5 to QPC757 DCHI J2 with a
QCAD328A cable. You can also connect the PRI to an MSDL card with
the cables noted in
(with X11 release 18 and later).
If this PRI does not supply the D-channel (it is one of multiple PRIs in
an nB+D configuration), no additional cabling is required. The
D-channel is associated through software in LD 17, prompt PRI.
The LEDs flash three times to indicate the QPC720 is operable.
4
Configure your database. Refer to
ISDN Primary Rate Interface
description and administration
(553-2901-100) and
X11 input/output
guide
(553-3001-400) for database implementation.